Abstract: Based on the site specific engineering geology, hydrogeological conditions and the adjacent environments at a propose building site, the deep excavation supporting structure was selected by using the combination of supporting structures, inside sloping at proposed shallow excavation areas with back slope, soldier piles with shotcrete with welded wire mesh coverage and internal supports. The different construction process, such as, soldier piles, high-pressure jet grout, well points and soil nails are reviewed and summarized in the paper. Throughout the combination use of shotcrete with welded wire mesh, grouting, internal support and earth removal, the construction efficiency is effectively improved, and the construction schedule is saved. Using informational construction, monitoring and regular inspection of the deep excavation and soldier pile construction, as well as emergency backup, the construction induced risks could be effectively avoided.

Key words: Deep Excavation with Large Depth, Deep Excavation Supporting Structure, Construction Technique